Testing students
Giving a test to a group of students, the grades and gender are summarized below.
Grades and Gender
If one student is chosen at random,
a) Find the probability that the student got a B.
b) Find the probability that the student was female AND got a "C":
c) Find the probability that the student was female OR got a "B":
d) If one student is chosen at random, find the probability that the student got a 'B' GIVEN they are male
Grades and Gender
A | B | C | Total | |
---|---|---|---|---|
Male | 20 | 6 | 19 | 45 |
Female | 17 | 18 | 13 | 48 |
Total | 37 | 24 | 32 | 93 |
If one student is chosen at random,
a) Find the probability that the student got a B.
b) Find the probability that the student was female AND got a "C":
c) Find the probability that the student was female OR got a "B":
d) If one student is chosen at random, find the probability that the student got a 'B' GIVEN they are male
Correct answer:
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